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Bilge for ocean engineering auxiliary ship

A technology for marine engineering and auxiliary ships, which is applied in the direction of hull parts, hulls, and ship construction, and can solve the problems of unfavorable anti-roll control, increased construction cost, and high cost of anti-rolling fins.

Inactive Publication Date: 2013-09-18
上海斯迪安船舶设计有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common anti-rolling devices include bilge keels, fin stabilizers and water stabilizer tanks. Among them, the cost of fin stabilizers is relatively high, and the purely passive stabilizer tanks in the tanks occupy too large positions and are accompanied by a certain increase. However, the controllable passive anti-rolling water tank overcomes the shortcomings of pure passive water tanks in terms of increased rolling and unfavorable control, but at the same time increases the cost and cannot overcome the shortcomings of excessive volume

Method used

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  • Bilge for ocean engineering auxiliary ship
  • Bilge for ocean engineering auxiliary ship
  • Bilge for ocean engineering auxiliary ship

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0028] An existing marine engineering auxiliary vessel such as figure 1 As shown, this type of ship is called Plan A, and the traditional arc-shaped bilge at the parallel center body is changed to the angle-shaped bilge of the present invention, and the head and tail sections are transitioned to the arc-shaped bilge, as figure 2 As shown, this type of ship is called Plan B, and the main parameters of the two plans are listed in the following table:

[0029] Table 1. Main parameter information of the two schemes

[0030]

[0031]

[0032] Combining the shape of the bilge part of the two schemes, the layout of the bilge keel is carried out. According to the usual practice, the layout of the bilge keel should not exceed the width of the ship and the bottom of the ship....

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Abstract

The invention discloses a bilge for an ocean engineering auxiliary ship. A contour line at a parallel middle body segment of the bilge is folded corner-shaped. Through the folded corner-shaped bilge, the width of a bilge keel can be effectively increased, so that the roll damping is greatly increased; on the premise that an anti-rolling tank and an anti-rolling fin are not installed, the seakeeping performance of the ship is greatly increased, the construction difficulty of the ship is reduced simultaneously, and the construction cost of the ship is saved.

Description

technical field [0001] The invention relates to the technical field of an offshore engineering auxiliary vessel (Offshore Supply Vessel, OSV), in particular to a bilge for an offshore engineering auxiliary vessel. Background technique [0002] Offshore engineering auxiliary ships need to stay at sea for a long time to serve offshore platforms, and cannot change course or shelter from the wind before the arrival of strong waves like ordinary ships, so offshore engineering auxiliary ships inevitably need to work in extremely harsh sea conditions. Along with the movement of the waves, the marine engineering auxiliary vessel also moves in six degrees of freedom. These movements will not only reduce the operating efficiency of marine machinery, but also accelerate the fatigue of the crew and reduce the work efficiency of the crew. Therefore, seakeeping (rolling, pitching, sinking, etc.), especially rolling has become an important inspection index for marine engineering auxiliary ...

Claims

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Application Information

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IPC IPC(8): B63B3/14
Inventor 潘徐杰顾挺锋翁徽赣刘冰刘少东
Owner 上海斯迪安船舶设计有限公司
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